Tachometer Ranger or Mazda B Series - YouTubeClick to view on Bing1:24Aug 22, 2015Just find the town with the yellow stripe wire is hooked to the fuse box under the hood if the truck doesn't come with the tachometer. Tachometer Ranger or Mazda B Series Zain Anderson.Author: Zain AndersonViews: 8K1986 Mazda B2000 Vehicle Wiring Chart and DiagramATTENTION: This wiring information is being provided free of charge and on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it by using a digital multimeter.